Last Updated Fri, 06/07/2024 - 00:04
HyARC Data Page
… Contains information on the lengths of hydrogen pipeline in the U.S., Europe, and the rest of the world by location and ownership. … Hydrogen Pipelines …
Last Updated Mon, 07/14/2025 - 16:34
FAQ
… suitable for generation and containment of high-pressure hydrogen gas, but it is important to ensure stress levels in … the material. … 853 … 856 … 789 … 902 … When generating hydrogen in a high-pressure catalytic reactor, what type of … should be used to prevent H2 embrittlement or corrosion? … Hydrogen material compatibility …
Last Updated Thu, 06/26/2025 - 16:07
FAQ
… Flame arrestors can be installed on hydrogen gas vents. The purpose of a flame arrestor is to … example, a flame arrestor on a vent stack serving a liquid hydrogen system might get cold and build up ice, thereby … vented to atmosphere, and where there is a possibility of hydrogen leakage into the crankcase, that vent might use a …
Last Updated Mon, 06/23/2025 - 16:47
FAQ
… practices (RAGAGEP) for employing a purge into a hydrogen vent stack is that inerting is not generally used. … (carbon or stainless steel pipe). CGA G-5.5, Standard for Hydrogen Vent Systems, Section 6.2 states that “Hydrogen vent systems do not require inerting of the vent …
Last Updated Thu, 07/03/2025 - 15:07
FAQ
… to limit fire spread to other materials. In the case of a hydrogen leak and fire, it is best practice to isolate the hydrogen source, and let any residual hydrogen gas burn out. Even if the initial fire is …
Last Updated Tue, 07/15/2025 - 15:18
FAQ
… not an easy question since many factors influence how much hydrogen can be transferred from one vessel at a higher … standards detail those rates and ending pressures. Most hydrogen dispensers use a cascade method of fueling … maintain the desired flow rate and maximize the amount of hydrogen that can be supplied. As a general rule, a higher …
Last Updated Wed, 07/09/2025 - 15:12
FAQ
… Documents such as NFPA 2, Hydrogen Technologies Code, and the International Fire Code … especially for systems that have the potential to release hydrogen into a confined or unvented space. Good engineering … regardless of the size of system. Also, the quantity of hydrogen connected to the system from outdoor storage must be …
Last Updated Thu, 01/23/2025 - 14:57
Fuel Cell Codes and Standards
… Requirements of industrial hydrogen, test methods, packaging flag, requirements for … for availability and current edition. … GB/T 3634.1-2006 Hydrogen – Part 1: Industrial hydrogen …
Last Updated Tue, 07/15/2025 - 15:27
FAQ
… job safety analysis), and most are the same as for gaseous hydrogen. Also reference NFPA 2 and CGA documents such as … to courses and information offered by the AIChE Center for Hydrogen Safety. Fundamental Hydrogen Safety Credential Wear proper personal protective …
Last Updated Mon, 07/21/2025 - 15:10
FAQ
… stainless steels, particularly 316, that are resistant to hydrogen embrittlement under static stress, although cyclic stresses add the potential for hydrogen-assisted fatigue cracking. One area of caution when … steel. The martensite phase is more susceptible to hydrogen embrittlement than the surrounding matrix, and a …
Last Updated Mon, 06/23/2025 - 16:50
FAQ
… practices (RAGAGEP) for employing a nitrogen purge into a hydrogen vent stack is that inerting is not generally used for nitrogen purge in a hydrogen vent stack because most inert gases freeze at liquid hydrogen temperatures. The vent stack should be designed for …
Last Updated Tue, 06/24/2025 - 19:06
FAQ
… (PSM) requirements. When asked about the applicability for hydrogen storage larger than 10,000 lb (4500 kg) being used … in part “…processes containing a threshold quantity of hydrogen used as a fuel must meet all requirements of PSM.” … 849 … 991 … 992 … 872 … 861 … 993 … Are hydrogen systems holding more than 10,000 lb (4500 kg) of …
Last Updated Mon, 06/30/2025 - 15:57
FAQ
… Liquid hydrogen will almost never accumulate in a vent system since … designed without insulation. The extremely cold liquid hydrogen temperature of -420 F. Additionally, vent stacks on … and should be checked and drained each time the liquid hydrogen tank is filled. … 939 … 921 … 2047 … 920 … Can you …
Last Updated Wed, 07/16/2025 - 14:38
FAQ
… be installed for the relief valves on backup cylinders of hydrogen gas in an outdoor storage/use area, as is done for the hydrogen venting system indoors? … Hydrogen Venting System …
Last Updated Fri, 08/15/2025 - 15:21
FAQ
… topic. The International Code Council (ICC) addresses hydrogen piping in the International Fuel Gas Code (IFGC). … the 2026 edition to allow the use of either document. The hydrogen piping provisions in the IFGC are dated and in need … while ASME B31.3 remains the predominant standard for hydrogen piping systems, offering extensive design guidance …
Last Updated Fri, 04/18/2025 - 19:40
HIAD Event
… blast furnace of the plant, which exploded. The explosion was so powerful that the entire furnace, which with its … in temperature of the molten metal, and the production of hydrogen and oxygen via thermolysis (dissociation of water by … an increased concentration levels: instead of the usual signal below 2%, during the previous two days the hydrogen …
Last Updated Mon, 06/03/2024 - 17:56
Basic page
… Hydrogen leak detection systems may be required by the … safety. Leak detection can be achieved by providing hydrogen (or flammable gas) detectors in a room or enclosure, … in close proximity to the exterior piping or locating hydrogen piping within another pipe and monitoring the …
Last Updated Tue, 07/15/2025 - 14:50
FAQ
… jacketed piping is double walled and is used in liquid hydrogen service to provide insulation. While not equipped … … 2111 … 2089 … 2112 … Can double pipes be used for hydrogen leak detection? … Double pipes for hydrogen leak detection …
Last Updated Thu, 06/19/2025 - 14:53
FAQ
… The water vapor cloud formed from venting cold hydrogen gas from a liquid hydrogen tank will vary in size depending upon atmospheric … between the water vapor cloud and the flammable cloud of hydrogen, but it’s often used as a proxy. Initially upon …
Last Updated Wed, 06/19/2024 - 06:50
Basic page
… Extensive industrial experience has shown that hydrogen degrades the mechanical properties of structural … metals under certain conditions through a process called "hydrogen embrittlement", enabling the initiation and … information is provided about a web-based resource that was developed by Sandia National Laboratories in 2005 to …
